That is kinda what I am doing.
Unfortunately the owner has several different contractors work on his bldg. and doesn't keep a running floorplan up to date with all of the changes. So, when he wants work done, 'SOME' of the then past changes are reflected in our floor plan and some are not. So, I can't simply take the NEW floorplan and replace my old one.
I know it's kinda confusing to understand.
We do the best we can to show accuracy and use what we are given.
craigr